468 research outputs found

    Cambios evolutivos (14–21 años) en los patrones de ingesta puntual de alcohol en exceso y en sus factores explicativos

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    In order to design prevention programs, it is important to understand the evolution of drinking behaviour patterns among adolescents and young people. The aim of this paper is to analyse the changes in these patterns based on age and their role in explaining this behaviour in the Theory of Planned Behaviour framework. We used 273 participants divided into three sub-samples (3rd and 4th ESO [Educación Secundaria Obligatoria, ‘Compulsory Secondary Education’] students and university students). For older ages, the frequency of binge drinking is higher and the attitudes were also more positive towards alcohol consumption. Structural equation analyses show that drinking behaviour is explained by a different model in each agegroup: in older groups, the role played by positive attitude and perceived control is more important than in the younger; by contrast, the influence of reference groups decreases with age. Results show significant differences between age groups regarding the reasons that young people report for engaging or not engaging in this behaviourConocer la evolución de los patrones de consumo de alcohol en adolescentes y jóvenes constituye una información relevante para el diseño de programas de prevención. El objetivo de este trabajo es analizar la evolución de dichos patrones en función de la edad y su papel para explicar dicho comportamiento en el marco de la Teoría de la Conducta Planeada. Trabajando con 273 participantes divididos en tres grupos (estudiantes de 3º de ESO, estudiantes de 4º de ESO y estudiantes universitarios), se constata un aumento con la edad de la frecuencia personal de consumo puntual de alcohol en exceso y una actitud más positiva hacia dicho consumo. Así mismo, los resultados obtenidos al aplicar análisis de ecuaciones estructurales muestran que este comportamiento es explicado por un modelo distinto en cada grupo de edad, de forma que a medida que aumenta la edad de los jóvenes, aumenta el papel de la actitud positiva hacia el comportamiento y del control percibido en la explicación del consumo, disminuyendo el peso de los grupos de referencia. Los resultados también muestran importantes diferencias entre los distintos grupos de edad respecto a los motivos que los jóvenes atribuyen a la realización y no realización de esta conductaEsta investigación ha sido financiada con el proyecto PSI2011-28720 del Ministerio español de Economía y Competitivida

    Abstractness leads people to base their behavioral intentions on desired attitudes

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    People sometimes want attitudes that differ from the ones they currently possess. These desired attitudes appear to be psychologically meaningful, but little is known about the properties of these evaluations. Because desired attitudes are hypothetical constructs (i.e., attitudes that one does not yet possess) and are distant in time (i.e., attitudes one could have in the future), we argued, based on construal level theory, that they should be represented in a relatively abstract manner, and consequently, we examined the implications of this abstractness for the characteristics and impact of desired attitudes. Consistent with this, we demonstrate that people perceive desired attitudes as more invariant across time and context, that desired attitudes are less impacted by changes in low-level features related to the attitude object (Study 1a and 1b) and that desired attitudes have a greater impact on behavioral intentions when people are in an abstract rather than concrete mindset (Studies 2–3). Although we did not make specific predictions regarding actual attitudes, they better predicted behavioral intentions in the concrete mindset (Studies 2–3). This last result should be taken with caution, considering that the level of abstraction shown by actual attitudes in Study 1a was at or slightly above the midpoint of our abstraction indexThis work was supported by MINECO (PSI 2014-53321-P

    Cómo el tiempo verbal afecta a la interpretación de las acciones: el pasado simple conduce a las personas a un nivel de representación abstracto

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    Two experiments examined the influence of verb tense on how abstractly people construe action representations. Experiment 1 revealed that written descriptions of several daily events using the simple past tense (vs. simple present tense) resulted in actions and the action’s target being seen as less likely and less familiar, respectively. In Experiment 2 participants wrote about a personal episode of binge drinking (using the simple past tense vs. simple present tense), and the resulting narratives were coded using the Linguistic Category Model (see Semin & Fiedler, 1991). Results revealed that events were described at a more abstract level when texts were written using the simple past tense (vs. simple present tense). The results are discussed in the context of other effects of verb form and in relation to construal level of eventsDos experimentos examinan la influencia del tiempo verbal en el nivel de abstracción con el que las personas representan las acciones. El Experimento 1 mostró que descripciones escritas de eventos cotidianos utilizando el pasado simple indefinido (vs. presente simple) daba lugar a que las acciones descritas y los protagonistas de las mismas fueran evaluados como menos probables y menos familiares respectivamente. En el Experimento 2 los participantes escribieron sobre un episodio personal de borrachera (usando el tiempo verbal pasado simple vs. el tiempo verbal presente simple) y esas narraciones fueron analizadas utilizando el Modelo de Categorización Lingüística (LCM) (ver Semin & Fiedler, 1991). Los resultados mostraron que el episodio era descrito con mayor nivel de abstracción cuando las narraciones habían sido escritas utilizando el pasado simple indefinido (vs. presente simple). Los resultados son discutidos en el contexto de la influencia de otras formas verbales y en relación al nivel de constructo con el que se representan las accionesThis research was supported by grants from the Ministerio de Economía y Competitividad (PSI 2011-28720) and by grants from the National Institutes of Health (K02-MH01861 and R01-NR08325

    The present projects past behavior into the future while the past projects attitudes into the future: how verb tense moderates predictors of drinking intentions

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    Three studies examined how the use of the present versus the past tense in recalling a past experience influences behavioral intentions. Experiment 1 revealed a stronger influence of past behaviors on drinking intentionswhen participants self-reported an episode of excessive drinking using the present tense. Correspondingly, therewas a stronger influence of attitudes towards excessive drinking when participants self-reported the episode in the past tense. Experiments 2 and 3 liked this effect to changes in construal level (Liberman, Trope, & Stephan, 2007; Trope & Liberman, 2003), with the present tense being similar to a concrete construal level and the past tense being similar to an abstract construal level.This research was supported by grants from Ministerio de Ciencia e Innovación PSI2008-04849 and Ministerio de Economía y Competitividad PSI2011-28720 and by grants from the National Institutes of Health (K02-MH01861 and R01-NR08325)

    Construal level as a moderator of the role of affective and cognitive attitudes in the prediction of health-risk behavioural intentions

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    In two preliminary control checks it was shown that affective attitudes presented greaterabstraction than cognitive attitudes. Three further studies explored how construal levelmoderated the role of affective and cognitive attitudes in predicting one health-promoting behaviour (exercising) and two risk behaviours (sleep debt and binge drinking). There was astronger influence of affective attitudes both when participants were in abstract (vs.concrete) mindsets induced by a priming task in Studies 1a and 1b, and when behaviouralintentions were formed for the distant (vs. near) future in Study 2. In the case of concretemindsets, the results were inconclusive; the interaction between construal level andcognitive attitudes was only marginally significant in Study 1b. The present researchsupports the assertion that in abstract mindsets (vs. concrete mindsets) people use moreaffective attitudes to construe their behavioural intentions. Practical implications forhealth promotion are discussed in the framework of construal-level theoryThis research was supported by grant PSI 2011-28720

    The emotional experience and the prediction of risk behaviours

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    La capacidad predictiva de la teoría de la conducta planificada (TCP) (Ajzen y Madden, 1986) en una conducta de riesgo prototípica como es la relación sexual sin preservativo es moderada (Albarracín, Johnson, Fishbein y Muellerleile, 2001). En este trabajo hemos elegido la conducta de montar en un vehículo sabiendo que su conductor ha bebido alcohol en exceso, y a la TCP hemos añadido como predictor de la intención conductual la experiencia emocional que el sujeto informa haber experimentado cuando en el pasado inmediato realizó esta conducta. Nuestros resultados señalan la importancia de la experiencia emocional vivida en el pasado como predictor de las intenciones de repetir la conducta de riesgo en el futuro (R= 49.1%), siendo incluso las variables emocionales más relevantes que la actitud, que la norma social subjetiva y que el control percibidoThe predictive capacity of the Theory of Planned Behaviour (TPB) (Ajzen & Madden, 1986) in a prototypical risk behaviour such as unprotected sex has shown itself to be no more than moderate (Albarracín, Johnson, Fishbein & Muellerleile, 2001). In the present work we chose the behaviour of getting into a vehicle knowing that the driver has drunk excessive alcohol, and we took as predictors of behavioural intention, in addition to the TPB variables, the emotional experience reported by the subject on performing this behaviour in the recent past. Our results indicate the importance of considering people’s emotional experience in the past as predictor of intention to repeat the risk behaviour in the future (R2= 49%), the emotional variables being even more relevant than attitude, subjective social norm and perceived controlEste trabajo se ha financiado con el proyecto de investigación «Conductas de riesgo en la población juvenil: la situación social, emoción y cognición» (BSO 2000-0113

    Can the life-history strategy explain the success of the exotic trees Ailanthus altissima and Robinia pseudoacacia in Iberian floodplain forests?

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    Ailanthus altissima and Robina pseudoacacia are two successful invasive species of floodplains in central Spain. We aim to explain their success as invaders in this habitat by exploring their phenological pattern, vegetative and sexual reproductive growth, and allometric relations, comparing them with those of the dominant native tree Populus alba. During a full annual cycle we follow the timing of vegetative growth, flowering, fruit set, leaf abscission and fruit dispersal. Growth was assessed by harvesting two-year old branches at the peaks of vegetative, flower and fruit production and expressing the mass of current-year leaves, stems, inflorescences and infrutescences per unit of previous-year stem mass. Secondary growth was assessed as the increment of trunk basal area per previous-year basal area. A. altissima and R. pseudoacacia showed reproductive traits (late flowering phenology, insect pollination, late and long fruit set period, larger seeds) different from P. alba and other native trees, which may help them to occupy an empty reproductive niche and benefit from a reduced competition for the resources required by reproductive growth. The larger seeds of the invaders may make them less dependent on gaps for seedling establishment. If so, these invaders may benefit from the reduced gap formation rate of flood-regulated rivers of the study region. The two invasive species showed higher gross production than the native, due to the higher size of pre-existing stems rather than to a faster relative growth rate. The latter was only higher in A. altissima for stems, and in R. pseudoacacia for reproductive organs. A. altissima and R. pseudoacacia showed the lowest and highest reproductive/vegetative mass ratio, respectively. Therefore, A. altissima may outcompete native P. alba trees thanks to a high potential to overtop coexisting plants whereas R. pseudoacacia may do so by means of a higher investment in sexual reproduction

    Effectiveness of a Multifactorial Intervention in the First 1000 Days of Life to Prevent Obesity and Overweight in Childhood: Study Protoco

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    (1) Background: Obesity is a global health problem, and its prevention must be a priority goal of public health, especially considering the seriousness of the problem among children. It is known that fetal and early postnatal environments may favor the appearance of obesity in later life. In recent years, the impact of the programs to prevent obesity in childhood has been scarce. The aim of this research is to evaluate the effectiveness of an intervention based on the concept of early programming. (2) Methods: Non-randomized controlled trial design. Inclusion criteria are: two-year-old infants whose gestational period begins in the 14 months following the start of the intervention, and whose mothers have made the complete follow-up of their pregnancy in the same clinical unit of the study. The intervention will be developed over all the known factors that affect early programming, during pregnancy up to 2 years of life. Data will be collected through a data collection sheet by the paediatricians. A unibivariate and multivariate analysis of the data will be carried out. (3) Ethics and dissemination: The trial does not involve any risk to participants and their offspring. Signed informed consent is obtained from all participants. Ethical approval has been obtained. (4) Results: It is expected that this study will provide evidence on the importance of the prevention of obesity from the critical period of the first 1000 days of life, being able to establish this as a standard intervention in primary care

    Organoids and colorectal cancer

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    Organoids were first established as a three‐dimensional cell culture system from mouse small intestine. Subsequent development has made organoids a key system to study many human physiological and pathological processes that affect a variety of tissues and organs. In particular, organoids are becoming very useful tools to dissect colorectal cancer (CRC) by allowing the circumvention of classical problems and limitations, such as the impossibility of long‐term culture of normal intestinal epithelial cells and the lack of good animal models for CRC. In this review, we describe the features and current knowledge of intestinal organoids and how they are largely contributing to our better understanding of intestinal cell biology and CRC genetics. Moreover, recent data show that organoids are appropriate systems for antitumoral drug testing and for the personalized treatment of CRC patients.The work in the authors’ laboratory is funded by the Agencia Estatal de Investigación (PID2019‐104867RB‐I00/AEI/10.13039/501100011033), the Ministerio de Ciencia e Innovación (SAF2017‐90604‐REDT/NuRCaMeIn), and the Instituto de Salud Carlos III—Fondo Europeo de Desarrollo Regional (CIBERONC/CB16/12/00273, CIBERONC/CB16/12/00398 and ICI20/00057)

    I feel so sorry!: tapping the joint influence of empathy and personal distress on helping behavior

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    The author may only post his/her version provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be provided by inserting the DOI number of the article in the following sentence: “The final publication is available at Springer via http://dx.doi.org/[insert DOI]”Observing a person in need usually provokes a compound and dynamic emotional experience made up of empathy and personal distress which, in turn, may influence helping behavior. As the exclusive use of rating scales to measure these two emotions does not permit the analysis of their concurrent evolution, we added the analogical emotional scale (AES) in order to measure how these two emotions evolve throughout the emotional experience, from its onset to its conclusion. Therefore, in two studies, the concurrence of empathy and personal distress was induced, both rating scales and AES were used, and participants were given an unexpected opportunity to help. Two effects were found. First, the helping behavior was lower when personal distress prevailed over empathy at the end of the experience (Studies 1 and 2). Second, this ‘‘end’’ effect was coherent with the nature of the different motives evoked by personal distress and empathy—directed to increasing either one’s own welfare (egoistic) or the victim’s welfare (altruism) (Study 2). These results support the usefulness of combining the rating scales and the AES for gaining a better understanding of the nature and behavioral consequences of complex, compound and dynamic emotional experiences.The research was financed by two grants from the Spanish Ministry of Science and Innovation (MICINN) PSI2008-04849/PSIC and PSI2011-28720
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